UCB/EECS-2016-178：高能效Serdes均衡电路研究

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"这篇资源来自于加州大学伯克利分校的一篇技术报告，主要探讨了能量高效均衡电路在高速有线通信链路中的应用。作者Yue Lu深入研究了SerDes（Serializer-Deserializer）技术中的均衡技术，包括DFE（Decision Feedback Equalizer）、FFE（Feedforward Equalizer）以及CTLE（Continuous Time Linear Equalizer）等关键组成部分。均衡技术在高速串行数据传输中扮演着至关重要的角色，因为信号在传输过程中会受到各种衰减和干扰，如频率选择性衰落、噪声和串扰等。DFE是一种基于判决反馈的均衡方法，它利用接收端的判决信息来校正信号的失真，通过消除过去符号的干扰来改善当前符号的估计。而FFE则是在接收端对输入信号进行预处理，以补偿传输通道引起的频率响应平坦度下降。 CTLE是一种连续时间线性均衡器，通常用于补偿物理通道的非线性特性，尤其是在高频段。它通过在接收端引入一个可调的频率响应来改善系统的整体性能。CTLE的设计和优化对于实现高效能和低功耗的SerDes系统至关重要。报告详细分析了这些均衡技术的原理、设计挑战以及如何实现更高的能效比。作者还可能讨论了在实际应用中如何权衡性能、功耗和复杂性，并可能提供了实验结果和仿真数据，以证明所提出的方法在实际高速有线通信系统中的有效性。此外，报告强调了版权问题，允许个人或课堂使用时免费复制，但禁止用于营利或商业目的。要进行其他形式的复制、发布或分发，需事先获得作者的特定许可。这篇报告对于理解SerDes技术中的均衡策略，以及在设计高数据速率通信系统时如何克服信号质量下降的问题，具有很高的参考价值。"

List of Tables

Table 2.1: pre-emphasis voltage-mode transmitter comparison .............................................. 32

Table 3.1: comparison to state-of-the-art 20+Gb/s DFE designs ............................................ 59

Table 4.1: reference item list of the technology LUT ................................................................. 71

Acknowledgements

I cannot imagine a better time than the past 6 years I have spent at UC Berkeley as a

graduate student. I feel extremely fortunate to have received so much help and support

from so many individuals, without whom I can never reach this finish line of my Ph.D

journey. I would like to take this opportunity to express my most sincere gratitude to

every one of these companions.

I cannot feel luckier to have Prof. Elad Alon as my advisor. Elad’s knowledge,

patience as well as his inspiring lectures paved the path for me to become a good IC

designer. I can hardly think of a better advisor who is always willing to discuss with me

whenever I come up with new ideas and provides all sorts of support to implement them.

I still remember the hours of technical discussions we had over the phone, some of those

lasted deep into the night even when Elad needed to travel early in the next morning.

Without his insightful feedback, I could never conquer the obstacles I had faced during

my Ph.D studies. My gratitude to Elad is not limited to just research. He was always

happy to share with me his experiences working in both industry and academia, and

helped me resolve my concerns and difficult situations I encountered, all of which I

found very beneficial to shape a better view of my future career.

I would like to thank Prof. Jan Rabaey, Prof. Seth Sanders and Prof. Paul Wright

for being on my thesis and qualification exam committee. Their valuable feedback helped

me to reshape my ideas when conducting research. I want to thank Prof. Ali Niknejad for

his wonderful RF courses and the enjoyable soccer games he invited me to join. I also

want to thank Prof. Haideh Khorramabadi and Prof. Borivoje Nikolic for teaching my

ADC and digital IC design classes.

Throughout my Ph.D, I have got the opportunities to collaborate with many

talents from various research institutes. I would like to thank Ming-Shuan Chen, Amr

Hafez and Prof. Ken Yang of UCLA, Kangmin Hu, Rui Bai and Prof. Patrick Chang of

Oregon State University, Amr Suleiman of MIT, Prof. Vladimir Stojanovic of UC

Berkeley and Prof. Pavan Hanumolu of UIUC for the fruitful discussions and their

insightful comments/feedback on my research. I certainly cannot get my work done

without the gracious support from our industry partners and therefore I owe my thanks to

Bryan Casper, Tanay Karnik, Mondira Pant of Intel, Yasuo Hidaka and William Walker

of Fujitsu Laboratories of America as well as Ken Chang and Yohan Frans of Xilinx. I

have met many great people in industry who helped me improve my technical strength. In

particular, I would like to thank Jared Zerbe, Brian Leibowitz and Wenbo Liu of Apple,

Jihong Ren of Altera and Yueyong Wang of Broadcom.

Berkeley Wireless Research Center is a fabulous place with a group of amazing

people. I want to thank all the BWRC staff and especially Tom Boot, Brian Richards,

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